Firmware Development Jobs

ESP32-Based Wearable Dementia Safety & Voice-Reminder Prototype Project Overview I am looking for an embedded systems / IoT developer to build a single functional prototype of a wearable device called Mitra – Wearable Guardian for Dementia Care. This is a student innovation/competition prototype, not a commercial medical device. The priority is to create a reliable, compact and presentable working prototype at a reasonable cost. I am specifically looking for someone experienced with ESP32, GSM/SMS, sensors, audio playback, PCB design and small wearable electronics. --- Required Features 1. Emergency SOS - Physical, easily accessible SOS button. - When pressed, Mitra should send an actual SMS to a pre-configured caregiver phone number. - SMS should contain: - Emergency ale...

Pic16f1829 , push pull (180 phase shift same duty cycle for both output, no duty cycle invert cycle by cycle) pin details below and function 1, vcc 5v (on switch) 2, fan MOSFET gate signal 3, 10k NTC tie with 5v ground resistor 10k and 100nf pf . 50c fan speed is half 50c -80c full speed above 90c engage fault and run fan 100% 4, mclr ground with 100nf pf 5, 25khz push PWM closed loop with pin 14 adjust duty cycle according to output keep stable voltage max duty cycle 45% 6. 25khz pull PWM 180 phase shift output of pin 5 same duty cycle no invert out . Closed loop with pin 14 max DUTY CYCLE 45% 7, on ok green led signal 8, 190khz 50% fixed duty cycle no distrub perfect and clean 9. Nc 10, fault led signal . pin14 95v fail continuous on, temperature fail twice blink break repeat, 3 b...

I’m developing a next-generation Bitcoin miner, internally labelled “400,000,” and I need an engineer or small team to drive the research-and-development phase. My priorities are clear: push Energy efficiency as far as current silicon will allow, unlock higher Processing power than today’s leading rigs, and experiment with new or optimised Mining algorithms. I also want the design to remain flexible enough to switch over to Bitcoin Cash should comparative profitability shift. At this stage the unit’s final home is undecided—my form literally says “Dinner,” which simply means I’ll be bench-testing the prototype in an ordinary room rather than a purpose-built data centre. Noise, thermal load and power draw therefore have to stay within l...

The existing board is finished and working; the only task still open is replacing two connectors: • Change the current USB connector to a USB-C footprint that I have already created. • Replace the end-of-board black connector with an IDC-Connector-2x3 footprint, also ready to drop in. All footprints are tested in KiCad, Altium, and the other common suites, and the complete Altium project files are available for reference. No further layout changes are required, and I do not need help with assembly. Deliverables I expect: 1. Updated schematic symbols pointing to the new footprints. 2. Cleaned-up PCB layout reflecting the two swaps, DRC-error-free. 3. Gerber/ODB++ plus native design files in whichever major tool you prefer (Altium, KiCad, etc.). Once these files are d...

I’m developing a next-generation padlock that couples robust physical security with modern electronics. The core idea is a tamper-resistant body housing a low-power PCB that supports BLE unlocking, RFID credential reading and an always-on GPS module. A compact solar panel must keep the cell topped up so the lock can sit in the field for long stretches without manual charging. Here is the outline I need your help bringing to life: • Electronics: choose components, lay out the PCB and write the embedded code so the lock wakes only when needed, yet still logs location pings. Expect Nordic-style BLE, an ultra-low-power GPS, RFID reader IC, power-path management and secure element for key storage. • Power strategy: harvest energy from the solar cell, switch gracefully to an ...

I'm looking for an experienced electronics engineer to develop a balance charger and discharger specifically for RC drones. The charger should support LiPo and Li-ion batteries, with a maximum voltage of 16.8V. Key Requirements: - Balance charging and discharging functionality - Support for LiPo and Li-ion battery types - Maximum voltage support of 16.8V - Suitable for RC drones - The user should be able to select the battery type, battery cells(1s,2s,3s,4s), calibrate voltage, modes such as quick charging/balance charging/discharging/storage charging. - The user should also be able to select the current. Ideal Skills and Experience: - Expertise in battery management systems - Expert in RC battery such as LiPo and Li-ion battery - Knowledge in embedded systems - Knowledge designing ...

I’m opening up a Score 7T (Keefe Group) tablet built on the MediaTek MT8168, board id tb8168p1_bsp, and I need to force it into BROM mode by shorting the correct test points on the motherboard. I’ve done a few hardware-point jobs before, so I understand basic safety and ESD practice, but I want to follow an exact, proven sequence this time. What I expect from you • A clear, step-by-step set of written instructions—my preferred format—covering disassembly, test-point identification (CLK/DAT0 or any pad combination that actually works on this board), timing of the short, and verification with mtkclient. • High-resolution reference photos or annotated diagrams of the Score 7T PCB highlighting the precise spots to short. • Any firmware-side preparati...

I’m building a compact, modular charging station for VRLA / AGM motorcycle batteries and I need the electronics and firmware that will let riders see real-time battery health on a dedicated physical display panel. Modular battery charger for VRLA / AGM motorcycle batteries The core of the job is the health-monitoring logic rather than charge control. I want the system to track three specific parameters—voltage levels, temperature, and accumulated charge cycles—and present them clearly on a small, ruggedized screen that can be mounted on the charging dock or the bike itself. Think of it as a “fuel gauge” for the battery, always on and readable at a glance, no phone or web connection required. Key things I’m looking for: • Hardware schematic an...

I use a NovelSat NS4 satellite receiver and, right now, every new channel search means typing each TP by hand. I want true blind-scan capability added so the unit automatically sweeps both transponder and frequency ranges without any manual input. You’ll need to work directly with the NS4’s existing firmware or supply an external solution (plug-in, patched image, or compatible software utility) that unlocks this feature. The end result should let me press a single command, watch the receiver scan, and see all available TPs and their frequencies populate on-screen just as factory blind-scan models do. Key deliverables: • A fully tested auto blind-scan function for the NovelSat NS4 covering both TP and frequency search • Clear step-by-step installation or flashing i...

I’m commissioning a complete digital blueprint for an AI “soul reader” device whose core function is naming the soul of a blueprint person that is born. Unlike conventional wearables that look only at pulse or sleep cycles, this concept revolves around two signature metrics I refer to as the dark matter and the light matter. Think of them as a device that scans the eyes or thumbprint of someone. A complementary data streams that reveal the hidden language or a decryption or the blueprint of an individual. This will be used in hospitals after someone is born. Here’s what I need delivered: • A detailed architecture document (PDF or other easily viewable digital format) that explains every hardware and firmware layer required to sense, process, and display ...

My desktop’s hard drive suddenly vanished from both the BIOS and the operating system. All cables and power leads appear firmly seated, yet the drive will not spin up or register on any SATA port I try. I need a skilled hardware repair-focused technician to diagnose the root cause and bring the drive back to a state where it is reliably detected again. The job is strictly hardware-level: testing the drive on proper benches, checking the PCB and controller, inspecting the power delivery, replacing or repairing any failed components, and verifying the unit in a working test rig. If a donor board or firmware flash is required, please let me know beforehand so I can approve sourcing. Deliverables • A repaired hard drive that mounts consistently on a standard SATA interface &bu...

固件提取 固件完整性验证 分析环境搭建 固件分析 功能开发/验证 烧录方案开发 空白 IC 及测试样片测试 改样片循环跟寿命

I need an embedded-software specialist who can take my collection of Wi-Fi and LoRaWAN gateways and assorted sensors and knit them into a single, production-ready IoT platform. The job covers the full stack from firmware that runs on the edge devices through to the application layer that users will see. Core capabilities the platform must deliver: • Data collection from every gateway and sensor • Robust device management (on-boarding, remote configuration, OTA updates) • Built-in analytics so I can visualise trends and run simple rules without exporting data elsewhere You’ll be free to recommend languages, embedded RTOS options, and cloud back-ends, provided they reliably handle both Wi-Fi and LoRaWAN traffic and scale cleanly as more hardware is added. Deliverables...

Hello Yernaidu, Thank you for your proposal. I'm interested in working with you on my Big Hero 6-inspired modular micro-robot project. I would like to clarify exactly what is included in your **$30 quotation**. Does this price cover the complete engineering design package, including: 1. Complete mechanical CAD and 3D modeling (editable source files, STEP, STL, and manufacturing drawings). 2. PCB schematic and layout design, including Gerber files and BOM. 3. Two independently controlled robotic arms with adjustable angles and a target of 360° rotation. 4. Forward and backward movement mechanism. 5. Robot-to-robot docking and separation mechanisms. 6. Relative position detection between robots. 7. Bluetooth communication and microcontroller firmware. 8. Python-based PC software...

1. Project Overview & Architecture The goal of this project is to design a set of modular, decentralized expansion PCB boards for grow tent automation. Instead of a rigid central mainboard, each expansion board functions as an independent node powered by a localized ESP32-C3 Supermini module, communicating via Wi-Fi/MQTT through ESPHome into Home Assistant. To reduce clutter and eliminate the need for multiple external power supplies, all boards will share a common power distribution concept: 12V DC Input (via standard 5.5x2.5mm barrel jacks or terminal blocks) with onboard step-down regulation (e.g., Buck converters) to supply 5V and 3.3V where needed, allowing a single 12V barrel power supply to be daisy-chained across boards. 2. General Requirements for All Boards Microcontroller: ...

I am looking for an experienced power electronics engineer or engineering team to design a residential-scale hybrid solar inverter for commercial production. The project involves developing a single-phase, 230 V AC, 50 Hz pure sine-wave hybrid inverter that integrates rooftop solar panels, a lithium battery bank and the utility grid. The design should prioritise high efficiency, reliability, safety and ease of manufacturing. I prefer an engineer with previous experience designing working solar inverters, grid-connected converters, MPPT controllers and bidirectional battery systems. An existing, validated reference design that can be licensed or transferred is preferred. 1. Target Specifications Rated power: 1–5 kW continuous AC output: 230 V RMS, single phase, 50 Hz Output wave...